Comparison of a Full Second-Order Moment Model and an Algebraic Stress Two-Phase Turbulence  Model for Simulating Bubble-Liquid Flows in a Bubble Column

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Comparison of a Full Second-Order Moment Model and an Algebraic Stress Two-Phase Turbulence
Model for Simulating Bubble-Liquid Flows in a Bubble Column

ZHOU Lixing^a; YANG Min^a; LIAN Chnying^a; L. S. Fan^b; D. J. Lee^b

^a Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
^b Department of Chemical Engineering, The Ohio State University, USA

Received:1900-01-01 Revised:1900-01-01 Online:2002-04-28 Published:2002-04-28
Contact: ZHOU Lixing

鼓泡床内气液两相流动的二阶矩模型与代数应力模型的模拟比较

周力行^a; 杨玟^a; 廉春英^a; L. S. Fan^b; D. J. Lee^b

^a Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
^b Department of Chemical Engineering, The Ohio State University, USA

通讯作者: 周力行

Abstract

Abstract: A full second-order moment (FSM) model and an algebraic stress (ASM) two-phase turbulence
modelare proposed and applied to predict turbulent bubble-liquid flows in a 2D rectangular
bubble column. Predictiongives the bubble and liquid velocities, bubble volume fraction,
bubble and liquid Reynolds stresses and bubble-liquidvelocity correlation. For predicted
two-phase velocities and bubble volume fraction there is only slight differencebetween
these two models, and the simulation results using both two models are in good agreement
with the particleimage velocimetry (PIV) measurements. Although the predicted two-phase
Reynolds stresses using the FSM are insomewhat better agreement with the PIV measurements
than those predicted using the ASM, the Reynolds stressespredicted using both two models
are in general agreement with the experiments. Therefore, it is suggested to usethe ASM
two-phase turbulence model in engineering application for saving the computation time.

Key words: second-order moment model, two-phase turbulence, bubble-liquid flow, bubble column

摘要： A full second-order moment (FSM) model and an algebraic stress (ASM) two-phase turbulence
modelare proposed and applied to predict turbulent bubble-liquid flows in a 2D rectangular
bubble column. Predictiongives the bubble and liquid velocities, bubble volume fraction,
bubble and liquid Reynolds stresses and bubble-liquidvelocity correlation. For predicted
two-phase velocities and bubble volume fraction there is only slight differencebetween
these two models, and the simulation results using both two models are in good agreement
with the particleimage velocimetry (PIV) measurements. Although the predicted two-phase
Reynolds stresses using the FSM are insomewhat better agreement with the PIV measurements
than those predicted using the ASM, the Reynolds stressespredicted using both two models
are in general agreement with the experiments. Therefore, it is suggested to usethe ASM
two-phase turbulence model in engineering application for saving the computation time.

关键词: second-order moment model;two-phase turbulence;bubble-liquid flow;bubble column

ZHOU Lixing, YANG Min, LIAN Chnying, L. S. Fan, D. J. Lee. Comparison of a Full Second-Order Moment Model and an Algebraic Stress Two-Phase Turbulence
Model for Simulating Bubble-Liquid Flows in a Bubble Column[J]. .

周力行, 杨玟, 廉春英, L. S. Fan, D. J. Lee. 鼓泡床内气液两相流动的二阶矩模型与代数应力模型的模拟比较[J]. CIESC Journal.

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